Has anybody had their electric windows start dropping and not going up straight? I've taken the door apart, and on the runner there's 1 plastic guide on 1 side and 2 on the other side. The top 1 of the 2 guides seems worn and the window moves, I've tried Ford, that was a waste of time as they only want to sell a complete mechanism for 170, and can't supply the guide. Has anyone else had this happen, if so how did you overcome this? Thanks alot